Method for preparing fiber material from banana pseudostem

Abstract

A method for preparing a fiber material from a banana pseudostem, which includes subjecting the banana pseudostem to a pressing treatment to obtain a pressed banana pseudostem, subjecting the pressed banana pseudostem to a fermentation reaction with Saccharomyces cerevisiae to obtain a fermented culture, subjecting the fermented culture to a simultaneous saccharification and fermentation process with pectinase to obtain a fermented product, subjecting the fermented product to a solid-liquid separation treatment to obtain a solid fraction, and subjecting the solid fraction to an alkali treatment, a water washing treatment, a bleaching treatment, a softening treatment, and a drying treatment in sequence, so as to obtain the fiber material.

What is claimed is: 
     
         1 . A method for preparing a fiber material from a banana pseudostem, comprising:
 (a) subjecting the banana pseudostem to a pressing treatment, so as to obtain a pressed banana pseudostem;   (b) subjecting the pressed banana pseudostem to a fermentation reaction with  Saccharomyces cerevisiae , so as to obtain a fermented culture;   (c) subjecting the fermented culture to a simultaneous saccharification and fermentation process with pectinase, so as to obtain a fermented product;   (d) subjecting the fermented product to a solid-liquid separation treatment, so as to obtain a solid fraction; and   (e) subjecting the solid fraction to an alkali treatment, a water washing treatment, a bleaching treatment, a softening treatment, and a drying treatment in sequence, so as to obtain the fiber material.   
     
     
         2 . The method as claimed in  claim 1 , wherein in step (b), the fermentation reaction is conducted at a temperature ranging from 20° C. to 32° C. 
     
     
         3 . The method as claimed in  claim 1 , wherein in step (c), the simultaneous saccharification and fermentation process is conducted at a temperature ranging from 15° C. to 55° C. 
     
     
         4 . The method as claimed in  claim 1 , further comprising: subjecting the fiber material obtained in step (e) to a bale opening treatment. 
     
     
         5 . A fiber material, which is prepared by a method according to  claim 1 .